Electric soldering device for can-capping machines.



No.l 677,335. Patented my` 2, wel. Y C

ELECTRIC SOLDERING DEVICE FCR CAN CAPPING MACHINES.l

(Lppliqntinn led Sept. 17, 1900.)

(No Modal.)

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UNITED STATES PATENT erica.

JULIUS II. C. BUERS'IATTE, OF MANITOWOC, VISCONSIN.

ELECTRIC SOLDERING DEVICE FOR CAN-CAPPING EVIAGHINES.

SPECIFICATION arming part of Letters Patent No. 677,335, dated July 2, 1901.

Application filed September 17, 1900. Serial No. 30,216. (No model.)

To all whom t may concern,.-

Be it known that I, JULIUs H. C. BUER- STATTE,.a citizen of the United States, residing in Manitowoc, county of Manitowoc, and State of Wisconsin, have invented certain new and useful Improvements in Electric Soldering Devices for Gan-Capping Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable persons skilled in the art to which it appertains to make and use the same.- f

My invention relates to improvements in means for heating the soldering-steels of cancapping machines.

The objectof my invention is to provide a means for heating the soldering-steels of cancapping machinery, whereby the heat is confined directly to the location where it is re,- quired and is not distributed in the machine, as in cases where the excessive heat evolved from gas-heaters is distributed through the working parts of the machine.

By the use of my invention great economy is secured and an even temperature of the,

iron is always maintained, whereby the soldering metal and flux may be uniformly and positively distributed at the point Where it is required for the purpose of uniting the surfaces.

By using electricity for the purpose of heating the soldering-steels instead of gas-dames, as heretofore, the heat is confined directly to the point Where it is required and is not lost by being conducted away from the objective point and distributed over the Working parts of the machine, by which the said working parts are destructively affected and are rendered difficult to lubricate.

By the use of my invention the tempera ture of the room in whichthe machine is located is not increased in warm weather, at such times when these machines are mostly in use, because the amount of heat needed is so small in proportion to that usually required and is infinitesimal when compared with that produced by the usual method of heating the irons when gas, gasolene-Vapor, dro., are used for the purpose.

In the drawings I have shown a section of a cappingdnachine containing one element away section.

thereof for the purpose of illustrating my invention, in Which- Figure l is an elevation of such a broken- Fig. 2 is a side View of the same. Fig. 3 is a section through the same looking from the top, taken on lines 8 3 of Fig. l. Fig. et is a perspective View of the completed steel broken away from the machine. Fig. 5 is a view showing the method that I prefer to pursue in Winding the wire upon the said steel, so as to render the said device non-inductive and non-magnetic.

In all of the views the same letters of reference indicate similar parts.

a is the steelportion of the part to be heated, which is tapered at the bottom and tinned, as is usual with steels of this description.

a' and a2 are the terminals of a heating-coil of wire that are wound about the steel frame a and terminate in two circular conductingdisks a3 and a4, which are insulated from the spindle b by a proper insulating material. These disks are rigidly fixed to the spindle b and turn with it and also with the solderingsteel ct when they are revolved.

Two grooved rollers o. and al surround the conducting-rods a8 and a9, preferably copper, and bear upon the respective disks o3 and a4. The conducting guide-rods as and of are secured in a suitable manner to the terminals of an electric circuit, shown in this case by the clasps d10 and am, which are parts of a fuse-block of which al2 and als are the4 fuses and are also part thereof. The terminals of the said fuse-blocks o and are adapted to be conveniently connected to an electric circuit.

For the purpose of preventing the heat from escaping from the heated steel a I prefer to insulate it from the body of the machine by means of the insulating-disk @16,'which may be composed of mica, asbestos, or like substances and which is contained between the anges of the spindle b and the upper part of the steel a. This serves as an electric insulator and also as a heat-insulator and prevents the escape of the heat to the other parts of the machine and also reduces the liability of electrical short-circuit.

Fig. 5 illustrates the manner in which the electric conducting-wire is wound upon the steel for the purpose of heating the saine. I irst insulate the body of the steel with mica, asbestos, or the like. I then select a conductor of suitable size and double it and begin winding the steel at the doubled end, leaving the two ,free ends of the conductor for terminals. Between each layer of wire I put a suitable insulation, and when the coil is com. pletely wound the two terminals that remain on the outside ot' the said coil, a and a2, are` connected to the disks a8 and a4 in the mahner plainly shown in Fig.. l. this method of winding the `magneticeft'ect due to the current circulating around the steel is reduced to a minimum, and the counter electromotive force that would be otherwise produced by the inductive eiect of .the coils when alternating 'currents are used is almost reduced to a minimum. For this reason I prefer this methodA of winding.

In the operation of the can -vcapping machine the steel a is reci procated vertically and it is also revolved. It will be noticed that I haveprovided for both of these movements. During the revolution of the steel the small rollers a6 and a7, which surround the conducting-rods a8 and a9, bear upon the respective disks as and a, and vthese disks are insulatingly attached to the spindle, which spindle and steel have a rotary motion imparted to them. By this means the current is contributed to the coil during the said rotary motion, and inasmuch as the small rollers a and a7 are adapted to befreciprocated over the conducting-rods a8 and af they will move in conformity with the reciprocating motion of the steel and its connecting elements of the machine.

lThe mode of operation is as follows: The

steel aand the connecting system are raised, and a can having a cap properly covering the top is inserted under the said steel. Then the Vbody of the can.

By pursuing.

the can and is then given a rotary motion, and at the same time the ilux and solder are fed to the lower surface of the steel,which is thereby iiowed over the joint between the cap and the When the soldering operation has been performed, the steel and ventrod are raised and the can is removed. Y

The current necessary to heat the steel may be adjusted to the Work to be done so that the steel will be maintainedy at practically uniform temperature. y

Having Vdescribed my invention, what I .claim as new, anddesire to secure by Letters Patent of the United States, is-

1. A can-solderingdevice for can-capping machines comprisinga, steel adapted to flow solder, when hot, a supply-circuiaa non-,in -v ductive, electric, heating conductor surround- 'ing said steel, and tlxed thereto, ameansffor moving said steel and accompanying heating conductor,l and movable electric conductors adapted tomaintain constant connections bel tween said heating conductor and said 'supply-- circuit. I v Y A 2. A soldering device for can-cappi'ngma",

chines 'comprising a steel adapted tol ow solder, an electric heating conductor, doubled upon itself, and wound about the said steel,

leaving two outside terminals, a spindle to whichsaid steel is attached, two insulated conducting-disks fixedv to saidl spindle, and' .V comprising the terminalsl of the electric-heat ing-conductor rollers engaged with the said disks, and conductors upon which said'rollers are adapted to be reciprocated, substantially as setforth.l

In testimony whereof I have signed this specication, in the presence of two subscrib= ingwitnesses, this 4th dayof September, A. D. 1900. Y

JULiUs c. 13Unasiutfr'rir. lVitnesses: I

JOHN GHLoUPEk, EMIL BALU'SCH. 

